In the SBB ODPCH project, VDV 454 AUS messages in the GTFSR feed are converted to GTFSR. The GTFSR requires GTFS (annual timetable) to convert this data. For recipients of GTFSR data, it may be relevant to which GTFS data the GTFSR data issued relates. A proprietary interface to the GTFSR feed was developed for this purpose. The interface can be requested when GTFS data was last read in. An enquiry is structured as follows:
This timestamp can now be compared with the modification date of the GTFS data on opentransportdata.swiss (see illustration). As soon as the timestamp request to the GTFSR feed is newer than the timestamp on opentransportdata.swiss, the new data is active.
